/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/ClusterUnionManager.h
Returns all cluster unions. Really meant only to be used for debugging.
const [TMap](API\Runtime\Core\Containers\TMap)< [FClusterUnionIndex](API\Runtime\Chaos\Chaos\FClusterUnionIndex), [FClusterUnion](API\Runtime\Chaos\Chaos\FClusterUnion) > & GetAllClusterUnions() const